A HIGHLY EFFICIENT CLASS-F POWER AMPLIFIER FOR WIDEBAND LINEAR POWER AMPLIFIER APPLICATIONS

被引：2
|
作者：
Kim, Jangheon [1 ]
Moon, Junghwan [1 ]
Hong, Sungchul [2 ]
Kim, Bumman [1 ]
机构：
[1] Pohang Univ Sci & Technol, Dept Elect Engn, Gyeongbuk 790784, South Korea
[2] Samsung Elect Co Ltd, Telecommun Res & Dev Ctr, Suwon 442742, Gyeonggi, South Korea
来源：
MICROWAVE AND OPTICAL TECHNOLOGY LETTERS | 2009年 / 51卷 / 10期
关键词：
power amplifier; efficiency; linearity; linearization; WCDMA;
D O I：
10.1002/mop.24631
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In this letter, a highly, efficient class-F power amplifier (PA) is developed as a new main block of tire wideband base-station linear power amplifier. The class-F PA is implemented using Eudyna EGN010MK GaN HEMT with a 10-W peak envelop power. The nonlinearity and memory effects of class-F PA are explored to apply the wideband application. The maximum power-added efficiency of the implemented PA is 68% at a saturated output power of 40 dBm for the 2.14-GHz CW signal. The PA delivers a good efficiency of 35% at an average output power of 32.3 dBm for wide-band code division multiple access 3FA signal with 15-MHz bandwidth, and the linearity can be improved to about -48 dBc using the digital feedback predistortion linearization technique. (C) 2009 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 2323-2326, 2009 Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.24631
引用
收藏
页码：2323 / 2326
页数：4
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